package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.AttrEntity;
import com.atguigu.gulimall.product.service.AttrService;
import com.atguigu.gulimall.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimall.product.vo.AttrGroupWithAttrsVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;
import com.atguigu.gulimall.product.dao.AttrGroupDao;
import com.atguigu.gulimall.product.entity.AttrGroupEntity;
import com.atguigu.gulimall.product.service.AttrGroupService;


@Service("attrGroupService")
public class AttrGroupServiceImpl extends ServiceImpl<AttrGroupDao, AttrGroupEntity> implements AttrGroupService {

    @Autowired
    private AttrService attrService;

    @Autowired
    private AttrGroupDao attrGroupDao;

    /*
     * 根据分类id查出所有的分组以及这些分组里面的属性
     * @param:[catelogId]
     * @return:java.util.List<com.xmh.gulimall.product.vo.AttrGroupWithAttrsVo>
     */
    @Override
    public List<AttrGroupWithAttrsVo> getAttrGroupWithAttrsByCatelogId(Long catelogId) {

        List<AttrGroupEntity> attrGroupEntities = this.baseMapper.selectList(
                new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        List<AttrGroupWithAttrsVo> collect = attrGroupEntities.stream().map(item -> {
            AttrGroupWithAttrsVo attrGroupWithAttrsVo = new AttrGroupWithAttrsVo();
            BeanUtils.copyProperties(item, attrGroupWithAttrsVo);

            List<AttrEntity> attrs = attrService.getRelationAttr(item.getAttrGroupId());
            //查询分组下所有属性，不能用这个，这个是分类下的所有属性,这个注意
            //List<AttrEntity> attrs = attrService.list(new QueryWrapper<AttrEntity>()
            // .eq("catelog_id", catelogId));

            attrGroupWithAttrsVo.setAttrs(attrs);
            return attrGroupWithAttrsVo;
        }).collect(Collectors.toList());

        return collect;
    }

    @Override
    public List<SpuItemAttrGroupVo> getAttrGroupWithAllAttrsByCatalogIdAndSpuId(Long catalogId, Long spuId) {
        List<SpuItemAttrGroupVo> vos = attrGroupDao.selectGroupWithAttrsByCatalogIdAndSpuId(catalogId,spuId);
        return vos;
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrGroupEntity> page = this.page(
                new Query<AttrGroupEntity>().getPage(params),
                new QueryWrapper<AttrGroupEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public PageUtils queryPage(Map<String, Object> params,Long catelogId) {

        String key = (String)params.get("key");
        QueryWrapper<AttrGroupEntity> wrapper = new QueryWrapper<AttrGroupEntity>();
        if(!StringUtils.isEmpty(key)){
            wrapper.and((obj)->{
                obj.eq("attr_group_id",key).or().like("attr_group_name",key);
            });
        }

        if (catelogId == 0){
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params), wrapper);
            return new PageUtils(page);
        } else {
            wrapper.eq("catelog_id",catelogId);
            IPage<AttrGroupEntity> page = this.page(new Query<AttrGroupEntity>().getPage(params),wrapper);
            return new PageUtils(page);
        }

    }

}